What would you do?

A famous company had created a new cleaning product that could get rid of virtually any type of stain, no matter what surface. This product, when introduced to the public, was a big success. After a while, reports started to come in saying that in some households, overuse of the product may cause breathing problems. The company stated in response to the reports "the reported effect of our product is only in 5% of the people that use the product." The company also said they will be marketing a "extra-strength" formula of the original version. Should the company take their product off the shelves until they know what is causing the breathing problems in "the 5%", or continue selling their product in its original formula?